40367220721023 has 16 divisors (see below), whose sum is σ = 61512421836800. Its totient is φ = 23066808349536.

The previous prime is 40367220720977. The next prime is 40367220721031. The reversal of 40367220721023 is 32012702276304.

It is not a de Polignac number, because 40367220721023 - 2⁸ = 40367220720767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40367220721063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4426948 + ... + 10016601.

It is an arithmetic number, because the mean of its divisors is an integer number (3844526364800).

Almost surely, 2^{40367220721023} is an apocalyptic number.

40367220721023 is a deficient number, since it is larger than the sum of its proper divisors (21145201115777).

40367220721023 is a wasteful number, since it uses less digits than its factorization.

40367220721023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14576646.

The product of its (nonzero) digits is 169344, while the sum is 39.

Adding to 40367220721023 its reverse (32012702276304), we get a palindrome (72379922997327).

The spelling of 40367220721023 in words is "forty trillion, three hundred sixty-seven billion, two hundred twenty million, seven hundred twenty-one thousand, twenty-three".